Combustion-engine.



E. SOHIMANBK.

OOMBUSI'ION ENGINE.

APILIGATION FlLBD OOlHll, 1910.

LBYS@ Patented July 22,1913.

2 SHEETS-SHEET l.

Fig. 11 We Il??? Fig. 2

INVLNroK:

Wammsm: ENHL SCHIMANEKa Runway E. SGHIMANEK.

GOMBUSTION ENGINE.

APPLIGATION FILED 0012.11, 1910.

hmmm Patented 22,1913.

2 S -SHEET 2.

Fig-5 WVHWESSES lNvsNTOR Y www EMU. IMANEK ATToRNEY l the next following vvorlriinr @trol `L ITE l STA PATENT if;` F

ElVl-lll SCHIMANEK, GF BUDAPEST, .AUSTRIA-HUNGARY.

counnsrrouznuerun.

resalta.,

specification ol Letters llatent.v i

rateale unur sa., lele..

application filed Ojctober il, 1910. Serial No, assert/l.

To all whom if may concern Be it known that l, EMIL SOHIMANEK, en gineer, professor` at the Hungarian Royal Polytechnic, subject ot the King ol l-lungary, residing at liliehervari ut, Budapest, Austriallungary, have invented certain new and useful linprovements in` Combustionlngines, of which the following is a specilication.

My invention relates to internal coinbustion engines.

lt relates particularly to a nevv and inn proved combustion engine in which there is combined with the usual combustion chamber, a storage vreceptacle for increasing the llitherto the quantity ot air or mixture required tor the individual strokes in com bustion engines has heen sucked into the cyl inder during one single stroke, `whereby the quantity oit air or mixture to be considered in connection With the Worlr ed'ected per strolre corresponds only to the capacity of the cylinder. New according1 to the mode oit operation which terms the object oit the present invention, a quantity of air or niixture exceeding the cylinder capacity or beingtvvice or several tinies as large may, during the individuel Working strokes, be utilised :tor the worlr. rlliisis brought about by causing two or several pairs ot suction and compression strokes to precede each vvorlnng stroke in the place ot the usual single suction and compression stroke. Dur

u' in@l the compression stro-lies preceding@n ythe second or the last compression stroke air is stored in a collecting,r chamber, vvhich is closed by a suitably operated valve. This .collecting chamber, at the end ot the last suction stroke or at the beginning' ot the last compression stroke, is connected with the Working cylinder, so that the quantity ot air contained in the collecting chamber, together with the quantity ol air sucked in during' the last suction strolre, lorrns the quantity ol air lor the combustion during ln the accompanying dr lipgure l is a longitudinal section olf c is' Vactive exarnplc of the nevi engine; i. is a ver* tical section on the line 2 o 3' is a plan view.; fl-l shovv the cams ltl, ll?, tls, R4, operating,V respectively the valve levers lill, E2, E3, and the igniter @E shows the relative position et ti earns.

lug1 b1 ol the cana R2 (Fig. 5A)

crankshaft hy rneans of the spiral gears ll and ll in a Well known manner. Ar is the suction valve, C the exhaust valve ot the motor.

X isy the receptacle controlled hy the valve l.

'lhe inode ot operation is as tolloivs:

l. lfl hen the piston starting1 trom the post tion illustrated in lig. l descends duringI the first stroke, the suction valve .die opened by the lug al, ot the caniR, (Final) acting upon the control lever lEl and air, or a mixture ol air and combustible gas, tlovvs into the cylinder until the piston reaches the lower dead point, in. which position the lugn al disengages the lever and the suction.

valve is closed.

2. During the second stroke the piston ascends and the valve B is depressed by the acting upon the control lever E2. lhe airor mixture in xthe cylinder is novv compressed into the holder .lli through the valve lB. llt the' upper dead point the 'lug o1 disengages the lever `4 2 and the valve B is closed.

3. 'lhe piston ncrv descends again and executes the third strolre. llereby the lug; a2 (oli the earn R, (Filer. il) lil'ts the lever lill and the valve is again opened and the air, or mixture again tlovvs into the cylinder.

Between the third and fourth strolres,

or at the beginning,n ot the lourtli stroke,

theoretically exactly at the dead point, the hip,- 252 ot' the cana l, (lig. 5) acts upon the lever lZ and the valve B opens, atter the valve il has been already closed by the lug a2' ot the earn lt, (Fig. l) havingr disengaged the lever El; the earlier `compressed air. or

mixture rushes bach into the cylinder. lllter dowing oit the air or ot the mixture into the cylinder the valve B closes, whereupon. the ascendin piston compresses the air or mixture into the engine cylinder. ,The receptacle may be connected. with the cylinder during; the compressing" strolre; in this latter case the receptacle may be connected with the cylinder at any desired rnonaent durinpj this compression strolre.

5. llluring the lilith strolre, the vvorlr is done. -lll the valves remain closed.. ll up to this time no mixture, hut only air has :lle

been sucked in through the suction valve,

then during the fifth stroke combustion ma- `terial i the strongly compressed hot air.

is introduced into the cylinder, through a valve not shown, and burned in If, howhas been sucked in,the mixture is ignited at the dead point. In any case the piston executed the working stroke during the fifth stroke. The ignition can be produced by a cani It,i (Fig. 7) secured tothe shaft D, but not shown in Fig. 3, the lug K of said cam R,t acting upon the igniter K. .g

6. During the sixth stroke the piston ascends and pushes out the gases of combustion through the exhaust valve Gr, which is nowl opened by the lug 0 of the cam R3 (Fig. 6) acting upon the control lever E3. The exhaust valve closes at the upper dead point of the piston when the lug c of the cam R3 disengages the lever E3. Y

It is clear that as a result of the working process above described, a quantity of air or mixture corresponding to twice the caever, a mixture ypacity of the cylinder is consumed in each working stroke, that is to say, the engine is capable of performing during the six strokes nearly twice as much work as a twocycle motor having equal cylinder-dimensions.

The valves used with my invention may be of any type, for instance, slide valves or piston valves, or a combination of such valves.

What I claim' and desire to secure by Letters Patent is:

1. In an internal combustion engine, the combination of an explosion cylinder, a piston slidable therein, a suction valve, an exhaust valve and a receptacle-valve in the head of said cylinder, a storagereceptacle communicating with the explosion cylinder, the communication being controlled by said receptacle valve, a crank-shaft for said engine, and means'operated bycthe crank-shaft for opening and closing said valves, said means being adapted to open and then close the suction valve of the first down stroke to open and then close the recep-tacle valve on the succeeding up stroke, to open land then clo-se the suction valve on the next down stroke, to open and thenclose the receptacle valve on the next up stroke, whereby the compressed fluid rushes from the recepta lle to the cylinder and is compressed on said last-named up stroke, to retain all the valves closed on the next down stroke the same being the working stroke, and to open the exhaust valve on the next up stroke.

2. In an internal combustion engine, the combination of an explosion cylinder, a. receptacle communicating therewith, a valve controlling said communication and establishing said communication during the compression strokes and preventing said communication during the suction strokes whereby fluid is compressed in said receptacle said valve permitting the entrance of the fluid to the cylinder after a plurality of compression strokes, suction 'and exhaust valves, and means for operating all of said valves.

3. In an internal combustion engine, an explosion cylinder, a receptacle, a receptacle valve therebetween, a suction valve and an exhaust valve, means for closing the receptacle-valve during the suction strokes and opening it during the compression strokes, and means for closing all of the valves, means for opening the receptacle valve to introduce compressed fluid into the cylinder after several compression strokes, means for opening saidexhaust valves after the work-stroke of the engine.

4:. In an internal combustion engine, a cylinder and a receptacle communicatingl therewith, a valve for permitting fluid to be forced from the cylinder to the receptacle during the compression strokes, means automatically operating said valve in a manner to prevent the passing` of the compressed fluid back to the cylinder during the suction strokes following veach of a plurality of successive compression strokes and to allow after the last of this series of suction strokes at the compression stroke preceding the ignition the passin of the compressed fluid back to the cylin er.

In testimony whereof, I have signed my name to this specication in the presence of two subscribing witnesses.

EMIL ,SCHIMANEIL Witnesses:

GEORGE I-IAMANY,

CHARLES MESSINGER. 

